The large image shows the central region of Abell 3827. The central supermassive galaxy, ESO 146-IG 005, is clearly visible among its cluster companions as well as the remains of at least four nuclei that are being "digested" by the large galaxy. The inset (black on white image) reveals the gravitational lensed background galaxy arcs more clearly. Labeled on the inset are the most visible arcs from the closer background galaxy (z = 0.2 and labeled "A") and an arc from the more distant background galaxy (z = 0.4 and labeled "B").
R. Carrasco et al., Gemini Observatory/AURA